40007307 has 8 divisors (see below), whose sum is σ = 56480976. Its totient is φ = 25102592.

The previous prime is 40007263. The next prime is 40007309. The reversal of 40007307 is 70370004.

40007307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40007307 - 2¹² = 40003211 is a prime.

It is a super-2 number, since 2×40007307² = 3201169226784498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40007309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392178 + ... + 392279.

It is an arithmetic number, because the mean of its divisors is an integer number (7060122).

Almost surely, 2^40007307 is an apocalyptic number.

40007307 is a deficient number, since it is larger than the sum of its proper divisors (16473669).

40007307 is a wasteful number, since it uses less digits than its factorization.

40007307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784477.

The product of its (nonzero) digits is 588, while the sum is 21.

The square root of 40007307 is about 6325.1329630293. The cubic root of 40007307 is about 342.0160127245.

The spelling of 40007307 in words is "forty million, seven thousand, three hundred seven".